in germany, an eiffel tower replica in the center of a shopping ball is erected and a group of choir boys hit the ice on the coldest day of the year and in ukraine, a dusting of snow covers lennon, the revolutionary figure. pictures from around the world. >>> six weeks after superstorm sandy made landfall victims in places like staten island are dealing with toxic homes. experts say mold may be the top health threat facing those that are trying to rebuild. our national correspondent deborah feyerick is joining us from new york with more information. what's going on here, deb? >> you know, wolf, a number of people who have already started complaining about breathing problems and the problem is likely to only get worse. every day nancy suits up for a battle she's determined to win. >> i give myself four hours. you do both sides and the top. >> reporter: bleach, hydrogen peroxi peroxide, vinegar, even professionals have not been able to kill the flood in the wake of sandy's floodwaters. >> i'm trying to stay ahead of it. >> reporter: thousands of volunteers from world care center have b